198323599632 has 240 divisors, whose sum is σ = 572569710336. Its totient is φ = 58920038400.

The previous prime is 198323599589. The next prime is 198323599633. The reversal of 198323599632 is 236995323891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (198323599633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36853582 + ... + 36858962.

Almost surely, 2^198323599632 is an apocalyptic number.

198323599632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198323599632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286284855168).

198323599632 is an abundant number, since it is smaller than the sum of its proper divisors (374246110704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198323599632 is a wasteful number, since it uses less digits than its factorization.

198323599632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518 (or 5481 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 60.

The spelling of 198323599632 in words is "one hundred ninety-eight billion, three hundred twenty-three million, five hundred ninety-nine thousand, six hundred thirty-two".